Accident High Severity Resolved

CHP : Traffic Collision on US-101 Southbound north of Mendocino Ave (Santa Rosa). Off Ramp affected. Expect delays.

A high-severity accident was reported on US-101 S near Sonoma on September 13, 2026 at 6:37 AM.

Road

US-101 S

Area

Sonoma

Address

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Started

Sep 12, 11:37 PM

Last Updated

1 month, 2 weeks ago

Sep 12, 11:45 PM

Resolved

Sep 13, 6:00 AM

Coordinates

38.4823, -122.7368

Update History

4 observations

CHP : Traffic Collision on US-101 Southbound north of Mendocino Ave (Santa Rosa). Off Ramp affected. Expect delays. Sep 12, 11:45 PM

CHP : Traffic Collision on US-101 Southbound north of Mendocino Ave (Santa Rosa). Off Ramp affected. Expect delays. Sep 12, 11:30 PM

CHP : Traffic Collision on US-101 Southbound north of Mendocino Ave (Santa Rosa). Off Ramp affected. Expect delays. Sep 12, 11:15 PM

CHP : Traffic Collision on US-101 Southbound north of Mendocino Ave (Santa Rosa). Off Ramp affected. Expect delays. Sep 12, 11:00 PM

Source: 511_sfbay · ID 511.org/1548675 First seen Sep 12, 2026 11:00 PM